AdditionExpressionNode (singa-simulation 0.7.0 API)

java.lang.Object
- uk.co.cogitolearning.cogpar.SequenceExpressionNode
- - uk.co.cogitolearning.cogpar.AdditionExpressionNode

All Implemented Interfaces:

ExpressionNode
```
public class AdditionExpressionNode
extends SequenceExpressionNode
```
An ExpressionNode that handles additions and subtractions. The node can hold an arbitrary number of terms that are either added or subtracted from the sum.

Nested Class Summary
- Nested classes/interfaces inherited from class uk.co.cogitolearning.cogpar.SequenceExpressionNode
  SequenceExpressionNode.Term

Field Summary
- Fields inherited from class uk.co.cogitolearning.cogpar.SequenceExpressionNode
  terms
- Fields inherited from interface uk.co.cogitolearning.cogpar.ExpressionNode
  ADDITION_NODE, CONSTANT_NODE, EXPONENTIATION_NODE, FUNCTION_NODE, MULTIPLICATION_NODE, VARIABLE_NODE

Constructor Summary

Constructors
Constructor	Description
`AdditionExpressionNode(ExpressionNode node, boolean positive)`	Constructor to create an addition with the first term already added.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(ExpressionNodeVisitor visitor)`	Implementation of the visitor design pattern.
`int`	`getType()`	Returns the type of the node, in this case ExpressionNode.ADDITION_NODE
`double`	`getValue()`	Returns the value of the sub-expression that is rooted at this node.

Methods inherited from class uk.co.cogitolearning.cogpar.SequenceExpressionNode
add

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AdditionExpressionNode
```
public AdditionExpressionNode(ExpressionNode node,
                              boolean positive)
```
    Constructor to create an addition with the first term already added.
    
    Parameters:
    
    node - the term to be added
    
    positive - a flag indicating whether the term is added or subtracted
- Method Detail
  - getType
```
public int getType()
```
    Returns the type of the node, in this case ExpressionNode.ADDITION_NODE
    
    Returns:
    
    type of the node
  - getValue
```
public double getValue()
```
    Returns the value of the sub-expression that is rooted at this node. All the terms are evaluated and added or subtracted from the total sum.
    
    Returns:
    
    value of expression
  - accept
```
public void accept(ExpressionNodeVisitor visitor)
```
    Implementation of the visitor design pattern. Calls visit on the visitor and then passes the visitor on to the accept method of all the terms in the sum.
    
    Parameters:
    
    visitor - the visitor